LOS ANGELES — Nine students from a Los Angeles charter school district were on the bus trip to Humboldt State University on Thursday at the time of the crash, and two suffered injuries.

Officials at Alliance College-Ready Public Schools, a charter management organization that includes 15 high schools and seven middle schools, said the other seven students were on a separate bus that wasn’t involved in the crash.

The two girls who were involved received bruises and cuts, said Catherine Suitor, spokeswoman for the organization.

“Both are alive and have been in touch with their families,” Suitor said.